// Copyright (c) 2020 Presto Labs Pte. Ltd.
// Author: hyuan

#pragma once

#include <memory>
#include <sstream>
#include <string>
#include <utility>

#include "coin2/exchange/base/order/rate_tracker.h"

namespace coin2::exchange::deribit::api_util {

class DeribitRateTracker : public coin2::exchange::base::order::IRateTracker {
 public:
  using RateTracker = coin2::exchange::base::order::RateTracker;
  using ActionType = coin2::exchange::base::order::IRateTracker::ActionType;
  using RateLimitReportWriter = coin2::exchange::base::order::RateLimitReportWriter;
  using FixedWindowRateTracker = coin2::exchange::base::order::FixedWindowRateTracker;

 public:
  explicit DeribitRateTracker(
      const MarketExchangeApi& mea,
      const coin2::exchange::order::OrderConnectionConfig& cfg);

  void SetRateLimitInfo(int32_t rate_limit, int32_t rate_limit_remaining) override { CHECK(false); }
  void Push(int32_t num_reqs, int64_t timestamp, ActionType action_type) override;
  bool HasEnoughRateLimit(int64_t timestamp, ActionType action_type) override;
  void ParseRateLimitInfo(const std::shared_ptr<AsioHttpContext>&, ActionType) override {}
  void SetRateLimitInfoString(const google::protobuf::Message* message) override;
  void WriteRateLimitReportMessage(OrderLoggerCB callback) override;
  double GetMaxRateUsedRatio(int64_t timestamp, ActionType action_type) override;

 private:
  template <class RateConfig>
  void InitRateTracker(const RateConfig& rate_config, std::string_view mea_str, std::string_view example);

 private:
  // TODO(hyuan): add it back when necessary
  // Tag = WHITELIST
  // bool whitelisted_{false};
  std::unique_ptr<FixedWindowRateTracker> order_sec_rate_tracker_ = {};
  std::unique_ptr<FixedWindowRateTracker> req_sec_rate_tracker_ = {};
  std::unique_ptr<RateLimitReportWriter> rate_limit_report_writer_ = {};
};

}  // namespace coin2::exchange::deribit::api_util
